be careful which cam you use. i think PPG copied the RR part#6224 racing cam. this one is made specifically for the EMS system and does not work as well with the ECU's. the RR part#4224 cam is a better choice if you are using an ECU.

be careful which cam you use. i think PPG copied the RR part#6224 racing cam. this one is made specifically for the EMS system and does not work as well with the ECU's. the RR part#4224 cam is a better choice if you are using an ECU.

To avoid confusion we need to refer to the cams by the duration/lift spec. Or is it just a different lobe separation between the different rr cams?